Improvement in grain-separators



'G.'EOKLE'S;. Grain-Separators.

No. 203,717. Patented May 14, 1878.

WITNESSES INVENTOR E PETERS. PHOTO-LITHOERAfiEF l, WASHINGTON. D, C

UNITED STATES PATENT OFFICE.

GEORGE EGKLES, OF DOVER CENTRE, MINNESOTA.

lM PROVEMENT IN GRAIN-SEPARATORS.

Specification forming part of Letters Patent No. 203,717, dated May 14,1878; application filed October 27, 1877.

To all whom it may concern:

Be it known that 'I, GEORGE EOKLEs, of

7 Dover Centre, in the county of Olmsted and State of Minnesota, haveinvented a new and valuable Improvement in Fanning-Mills; and I dohereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a longitudinal vertical sectional view of myfanning-mill. Fig. 2 is a side view, and Fig. 3 is an end view thereof.

The nature of my invention consists in certain improvements infanning-mills, as will be hereinafter more fully set forth and claimed.

The annexed drawings, to which reference is made, fully illustrate myinvention.

A represents the frame of my fanning-mill, with hopper B at the top. Atone end is the fan-case O, with the ordinary fan D secured upon theshaft (1. One end of the fan-shaft a. projects beyond the side of theframe .A, and is provided with screw-threads to receive a pinion, I),screwed thereon. By connecting the pinion b with the end of the shaft toby screw-threads, said pinion can be easily removed and a larger orsmaller pinion substituted, according to the speed required. This pinionis rotated by means of a cog-wheel, E, provided with a crank, andmounted on a stud attached to the frame. The pinion b further mesheswith a cog-wheel, E, having a pitmanrod, d, connected to it, which rodconnects with an elbow or cranklever, G, pivoted at its angle near thefront of the frame. The other arm of this crank-lever is, by a rod, 6,connected with the shoe H, said shoe being suspended, by springs 71.h,within the main frame A. In the bottom of the shoe H is a sieve orscreen, I, provided at the top, on its upper end, with a dividing boardor strip, 2', extending above the screen, so that the blast from the fanwill blow the light wheat, dirt, and seeds over said divider, and thusmaking the ma chine a complete fan and blower combined. This bottomscreen may be inserted in either of two sets of grooves, 00 :10, made inthe sides of the shoe to receive it. The top groove is used for a common fanning-mill and the lower groove for blowers, as required. Above thebottom screen I in the shoe is inserted a slidin g frame, K, containingtwo stationary sieves, J J, and below these sieves is a movable sieve,L, placed in grooves in the sides of the frame. Below this latter sieveis a board, M, permanently attached to the frame. The sieve L forms aconveyer, and the board M underneath conveys seeds, &c., clear of thetailings. At the lower or inner end of the frame K, between the inclinedfeed-board of the shoe and the upwardly-inclined deflector m, and infront of two stationary sieves, J J, is hinged a valve or door, m, whichis used for the purpose of shutting off the blast from the grain on thesieves when such blast may not be needed. At each end of the fan-case Ois a slide, 0, to be opened or closed, as desired, for more or lessblast.

By the conjoint use of the valve m and the sieve I with the divider 1:,which may be pulled out and in, as well as set vertically, the gradingof the lighter grain blown over the rear edge of the upper sieves J Jcan be accurately regulated; and if the valve m be closed, the blast ispractically confined in its escape to the space below deflecting-boardm. The inclined divider 43 becomes in this case a deflector, and theblast is directed upward at an angle, throwing the chaff and lightmatters some distance clear of p the machine.

What I claim as new, and desire to secure by Letters Patent, is

The shoe H of a fanning-machine, provided with grooves m :10, aremovable screen, I, havin g an inclined back, i, rigid therewith,screens J J L, pivoted cut-off m, and fixed deflector of two witnesses.

GEORGE EOKLES. Witnesses L. GoPPERsMITH, C. H. HAWLEY.

